The CT990 is an IP67 certified VHF that allows it to be used in extreme weather conditions as it is protected from dust and water up to depth of one meter for 30 minutes. its large colour display allows great readability thanks to TFT liquid crystal technology. The EB version has a 3600mAh enhanced battery which is equivalent to about 30% more capacity and consequently longer duration. The previous model lasted around 16 hours, with the enhanced battery it lasts around 21 hours. Like its predecessor, the CT990 EB has 10W power and guarantees superior radio coverage performance compared to other devices of the same amateur family that typically transmit at 5W.